Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

AMOEBA, mORPHOLOGY OF AMOEBA AND ITS ADAPTATIONS

mORPHOLOGY OF AMOEBA AND ITS ADAPTATIONS

425, #questionThree actographs (look closely to see the labels A, B, and C)...

#questionThree actographs (look closely to see the labels A, B, and C). Assume that the abscissa is either 24 or 48 hours for each actograph. You are asked to write two sentences f

How do the rough endoplasmic reticulum produce proteins, How do the rough e...

How do the rough endoplasmic reticulum and the Golgi apparatus act in the production and releasing of proteins? The rough endoplasmic reticulum has in its outer membrane many r

Major information storage molecule, Following statement true for prokaryoti...

Following statement true for prokaryotic or eukaryotic? They use deoxyribonucleic acid as their major information storage molecule.

What are the main arguments that favor evolutionism, In the scientific comp...

In the scientific competition against fixism what are the main arguments that favor evolutionism? The major arguments in favor of evolutionism are: paleontological, from the st

What is pancreas , What is Pancreas ? The pancreas lies in the abdomina...

What is Pancreas ? The pancreas lies in the abdominal cavity in a loop between the stomach and small intestine. The pancreas consists of two major types of cells: those produci

Are the limbs modified into wings of bats, Are the limbs modified into wing...

Are the limbs modified into wings of bats and the wings of birds examples of evolutionary analogy or homology? What about whale fins compared to fish fins? Bat and bird wings h

Evolution , What benefits led to natural selection of a two-circuit pump f...

What benefits led to natural selection of a two-circuit pump function of the heart a) One circuit to go from the heart to the body and one from the heart to the lungs b) One cir

How lead to over expression of the protein, You have discovered that a sing...

You have discovered that a single protein in two different cell lines is significantly over expressed in one of them. The proteins are identical, yet Northern blot analysis has dem

Prolactin, assignment on prolactin

assignment on prolactin

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd